Does the Oval Office have corners?

What is the average weight for a nine yr old? What happens when you look through a giant concave mirror? What did they originally use to hit the ball with in ping pong? What is 12 oz 3 lb as a fraction in simplest form? Which property does not hold for the set of integers? Is 32 and 90 relatively prime? What is factorial of 20? What is A dollars increased by B percent? How do i sketch f(x)4-x...x-1 then find f(-3)? 3x plus 3 2x plus 10? How old is Christ? What is bigger 10 feet by 12 feet or 8 feet by 14 feet? How many edges a triangle based prism? What is 17 multiply by 17? How many miracles does the Bible list? What is an adjective for increase? Is zero considered an even number? How do you write 5 feet 4 inches? How do you count the lines on a ruler? How many weeks in180 days?